tachinieren

Etymology
. Proposals are:
 * , from, in the military language of the Austro-Hungarian army in WWI, where tachinieren would refer to a soldier being absent without permission.
 * Rotwelsch.

Verb

 * 1)  to laze around
 * 2)  to skip work or school by pretending to be sick, to pull a sickie, to throw a sickie, to skive off
 * 1)  to skip work or school by pretending to be sick, to pull a sickie, to throw a sickie, to skive off